| 含多感应发电机配电网的暂态稳定研究 |
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| 引用本文： | 周念成,王强钢,王鹏.含多感应发电机配电网的暂态稳定研究[J].中国电机工程学报,2011,31(16). |
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| 作者姓名： | 周念成 王强钢 王鹏 |
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| 作者单位： | 1. 输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,沙坪坝区,400044
2. 新加坡南洋理工大学电机与电子工程学院,新加坡,639798 |
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| 基金项目： | 输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512709208)~~ |
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| 摘 要： | 随着新能源的开发和利用,小型和微型分布式发电机(distributed generator,DG)开始接入配电网,在配电网中可能会出现暂态稳定问题.鼠笼式感应发电机(induction generator,IG)由于成本低、维护方便而在分布式发电中广泛应用.研究了多感应发电机配电网的暂态稳定问题,在单台感应发电机稳定判别的基础上,定义了多感应发电机配电网的暂态稳定域和临界切除时间(critical clearing time,CCT).利用转子运动方程的静等值电路,计及配电网网络方程约束和故障后感应发电机转子转速的变化,提出一种计算配电网多感应发电机临界转速和CCT的解析法.该方法与采用动态模型的仿真方法相比,计算量小,且能够揭示出多感应发电机之间暂态稳定性的内在联系.采用PSCAD/EMTDC仿真软件中的5阶动态模型仿真验证了该方法的正确性,并且分析了静态等值计算结果小于仿真结果的原因.
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| 关 键 词： | 鼠笼式感应发电机 暂态稳定 稳定域 静态等值电路 临界切除时间 配电网 解析法 |
Transient Stability of Distribution Network With Induction Generators |
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| ZHOU Niancheng
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WANG Qianggang
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WANG Peng.Transient Stability of Distribution Network With Induction Generators[J].Proceedings of the CSEE,2011,31(16). |
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| Authors: | ZHOU Niancheng WANG Qianggang WANG Peng |
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| Affiliation: | ZHOU Niancheng1,WANG Qianggang1,WANG Peng2(1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology(Chongqing University),Chongqing 400044,China,2.School of Electrical & Electronic Engineering,Nanyang Technological University,Singapore 639798) |
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| Abstract: | With the development of renewable energy technologies,the small or micro distributed generators(DGs) are embedded in distribution network,and the transient stability problem might occur in the distribution network.The squirrel-cage rotor induction generators(IGs) are widely applied in distribution networks due to lower unit cost,smaller size,and less maintenance requirements.The transient stability problem in distribution networks with multi IGs was analyzed,and the transient stability region and critical c... |
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| Keywords: | squirrel-cage rotor induction generator(IG) transient stability steady-state equivalent circuit critical speed critical clearing time(CCT) distribution network analytical method |
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